Analysis

  • max time kernel
    91s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-02-2023 07:34

General

  • Target

    5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe

  • Size

    3.6MB

  • MD5

    36fd273ea7607d3a203f257f4e2649ed

  • SHA1

    5e243f79ecb539d0d1f75fce7ddfedeccee70a48

  • SHA256

    471d501162e2a5cb6aab3f4f5362ff843d05ef9f20d9fd7ea29733d3a9875747

  • SHA512

    cf81163bc6d1f1141130fbe70944387b97d322afe837ad21a88a0be8f9fd87615bd7022cc572b1783871cc99f224258bae75855e805c733793b723ba0483597d

  • SSDEEP

    98304:VQF9SqUKUehGS26Ish7MUTjA+1VFnqWXvqaY4:VSSzMGS26x1MUTM+/Fh

Malware Config

Extracted

Family

aurora

C2

45.9.74.11:8081

Signatures

  • Aurora

    Aurora is a crypto wallet stealer written in Golang.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe
    "C:\Users\Admin\AppData\Local\Temp\5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4584
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:5092
      • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
        "C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4968
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwA1AA==
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2720
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2760
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2400
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2528
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            wmic os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4668
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic path win32_VideoController get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1200
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic path win32_VideoController get name
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1740
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic cpu get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2056
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic cpu get name
              6⤵
                PID:2368

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      1KB

      MD5

      4280e36a29fa31c01e4d8b2ba726a0d8

      SHA1

      c485c2c9ce0a99747b18d899b71dfa9a64dabe32

      SHA256

      e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359

      SHA512

      494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

      Filesize

      53KB

      MD5

      06ad34f9739c5159b4d92d702545bd49

      SHA1

      9152a0d4f153f3f40f7e606be75f81b582ee0c17

      SHA256

      474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba

      SHA512

      c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      16KB

      MD5

      42ac96468a93e33d1a156c941428d7f9

      SHA1

      ad6aeb254733173794343a89d37c61bc19362f8c

      SHA256

      5da9e6af5da6e31175d1c65cb487cc231a1314cb42502398f62f84fc981e3c34

      SHA512

      89749ce9fc9d8cc8260e1a344e8d591d7659d5b407737575026f881d016567cbc2f7784e4088abdcc3ed00338c31df2a82fb108d3078a264f600c2233b314d8c

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe

      Filesize

      362.4MB

      MD5

      0f934f4beadfaeaa47c749e69bb4d49d

      SHA1

      65aa04489062a7d4c952eb0712a7a017d2098e06

      SHA256

      14fb3b33719df70bae104480cd6176fc7c6011b8bb8c97cc8c50ed1a74ad6d4b

      SHA512

      8446d99b7a610f81448fd617a1075f4a83ee2a28c7d7cf8dafc309bd5f2d5194e4ca9db04ad5bcf2a480dd343eb4343a32fbd81685b17ee1e30f1b5e84cb8c89

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe

      Filesize

      349.6MB

      MD5

      10508a12fd009572c17264b0ef058141

      SHA1

      3de8e8cb7a2d8ea90bee93f9d3e6b8e12bf2e36e

      SHA256

      ce654301ea2f09db2033ff0ff59e96315e330eb8648810c71cf04ddd993a96f9

      SHA512

      e38b83f1da445e8de9db212b31d1c9e7807716ccd58acbcf4be44d98852b9bf854087c6ebb790017b236df0fa89259345e9bf6a53198e67647693840c5e916fb

    • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      317.1MB

      MD5

      a258fc34cb41d6aa5d865009e848e436

      SHA1

      3fa234433bd356515a592f45a2d7c4ab4a083f78

      SHA256

      fa17431e82904e6e47cb7b3c7904082909550e3a314c456138f689e2fc8dd77a

      SHA512

      94b21f5bdc4786df05cb98d6ad19543fe68bda52a6b001b9233282b1c6057bb060182a75ab975131faaf8219b674178170633c31d2dfcba148dec5bba70267fb

    • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      312.3MB

      MD5

      7bc82eda851aaf97e6f14383255eb0d9

      SHA1

      873cc329ddb243ce17d2a822ceb07ed7a4753bad

      SHA256

      dbf2e93e377d5a8fc9d3cd2382965042dedb614d44daad219670fd5bc726fe61

      SHA512

      56bf67e8c633a8ff02f27b13898164a7c0f929fe06aefb592a74dbc80aa8a0a163c7a33bd08a2d6701fac390f1c0100795440838fa30ab5d1e95263585a17afe

    • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      197.6MB

      MD5

      2b05e7dc6240d5c5c412db34f7e6209e

      SHA1

      88db2dfc0a79fcab929fb30af472b742a791f80f

      SHA256

      a1396851c9cd61d1e0c11ba019d6891ab973cc76a2e4607dde2058bddb899a7a

      SHA512

      f7e58c2fb5a7a9070404e63b6eb130c8793e0cab5c17f222698a7bd9cffadb4a6e5f5b05007e03e30ddcd574a39f04843dc4bddfd90cc511e2ca244351709212

    • memory/1200-165-0x0000000000000000-mapping.dmp

    • memory/1740-166-0x0000000000000000-mapping.dmp

    • memory/2056-167-0x0000000000000000-mapping.dmp

    • memory/2368-168-0x0000000000000000-mapping.dmp

    • memory/2400-164-0x0000000007790000-0x0000000007826000-memory.dmp

      Filesize

      600KB

    • memory/2400-163-0x0000000007550000-0x000000000755A000-memory.dmp

      Filesize

      40KB

    • memory/2400-159-0x0000000007190000-0x00000000071C2000-memory.dmp

      Filesize

      200KB

    • memory/2400-160-0x0000000074EE0000-0x0000000074F2C000-memory.dmp

      Filesize

      304KB

    • memory/2400-161-0x0000000006780000-0x000000000679E000-memory.dmp

      Filesize

      120KB

    • memory/2400-149-0x0000000000000000-mapping.dmp

    • memory/2400-169-0x0000000006030000-0x000000000603E000-memory.dmp

      Filesize

      56KB

    • memory/2400-170-0x0000000007710000-0x000000000772A000-memory.dmp

      Filesize

      104KB

    • memory/2400-171-0x00000000076F0000-0x00000000076F8000-memory.dmp

      Filesize

      32KB

    • memory/2528-151-0x0000000000000000-mapping.dmp

    • memory/2528-155-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/2528-172-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/2528-157-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/2528-152-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/2720-141-0x0000000004E50000-0x0000000004E86000-memory.dmp

      Filesize

      216KB

    • memory/2720-142-0x0000000005540000-0x0000000005B68000-memory.dmp

      Filesize

      6.2MB

    • memory/2720-146-0x0000000007BE0000-0x000000000825A000-memory.dmp

      Filesize

      6.5MB

    • memory/2720-140-0x0000000000000000-mapping.dmp

    • memory/2720-145-0x0000000006400000-0x000000000641E000-memory.dmp

      Filesize

      120KB

    • memory/2720-144-0x0000000005DB0000-0x0000000005E16000-memory.dmp

      Filesize

      408KB

    • memory/2720-143-0x0000000005C10000-0x0000000005C76000-memory.dmp

      Filesize

      408KB

    • memory/2720-147-0x00000000068E0000-0x00000000068FA000-memory.dmp

      Filesize

      104KB

    • memory/2760-148-0x0000000000000000-mapping.dmp

    • memory/4668-162-0x0000000000000000-mapping.dmp

    • memory/4968-139-0x00000000073A0000-0x00000000073C2000-memory.dmp

      Filesize

      136KB

    • memory/4968-138-0x0000000000CE0000-0x0000000001454000-memory.dmp

      Filesize

      7.5MB

    • memory/4968-135-0x0000000000000000-mapping.dmp

    • memory/5092-132-0x0000000000000000-mapping.dmp